Blog > How big is the Nebia Bath Mat and how much does it weigh? November 13, 2020 How big is the Nebia Bath Mat and how much does it weigh? The Nebia Bath Mat measures 21”W x 34”L / 53.3cm W x 86.4cm L and is about 0.50in (1.3cm) thick. It weighs about 2 lbs / 0.9 kg (out of the box).